ESPHome Components is a collection of custom components that extend ESPHome functionality for ESP8266 and ESP32 microcontrollers. The repository contains C++ implementations of additional sensors, displays, and device integrations not available in the core ESPHome distribution. The components follow ESPHome’s standard architecture and configuration patterns, allowing them to be easily integrated into existing ESPHome projects through external component references. Each component includes the necessary C++ code and Python configuration validation.

DNS2mDNS bridges traditional DNS queries with multicast DNS (mDNS) resolution for .local hostnames. The service allows devices that don’t natively support mDNS, such as many Android devices and Windows systems, to resolve local network hostnames through standard DNS queries. The Go implementation acts as a DNS server that intercepts queries for .local domains and forwards them to the mDNS system, then returns the results via standard DNS responses. This enables seamless local hostname resolution across mixed network environments with Docker deployment support.

This post outlines a security assessment of the new Sena Wifi Adapter I performed last summer for fun. With the world on lock-down due to COVID-19, I spent a lot of time last summer escaping the city going on motorcycle rides through the mountains and forests surrounding the bay area. It’s the perfect social distance activity because if you get within 6ft of someone you are likely to crash. One of my favorite motorcycle accessories is my Sena headset. It allows me to listen to navigation or music from my phone over Bluetooth while riding, and talk to other riders in my group. ...

Luxer One is a Python API client for the Luxer One Residential package management system. The library provides programmatic access to check package delivery status, retrieve pending packages, and interact with smart locker systems commonly found in apartment complexes and residential buildings. The client handles authentication with the Luxer One API and includes example code demonstrating basic operations such as logging in and querying package information. This enables automated monitoring and management of package deliveries through the Luxer One platform.

A while ago I received a bunch of bare ESP-WROOM-02 chips on tape, but I could not find enough documentation to program them (partially out of laziness). With my recent interest in ESPHome, I decided to give them another try. This blog post contains the results of my research on how to program them. ESP-WROOM-02 The ESP-WROOM-02 is just a ESP8266 underneath. If you don’t have a breakout board like me, then you will need a UART adapter and make a few minimal solder connections to set the various boot modes to allow you to program the firmware. Once programmed for the first time, you can use OTA updates to allow flashing firmware over WiFi and not need to mess with the wiring every time you want to reprogram it. ...

Extsort is a Go library that implements external sorting algorithms for datasets larger than available memory. The library manages temporary files and memory buffers to sort data that cannot fit entirely in RAM. The implementation uses merge sort with configurable buffer sizes and temporary file management. It provides a standard Go interface for sorting operations while automatically handling the complexity of disk-based intermediate storage and merging phases.

Allxfr performs DNS zone transfers (AXFR) against nameservers to retrieve complete zone files. The tool systematically attempts zone transfers against root zone servers and other configured nameservers to discover available zone data. The program supports both IPv4 and IPv6 connections and includes options for parallel transfers, dry-run operations, and zone file storage. It implements the DNS AXFR protocol to request complete zone transfers from authoritative nameservers that permit such operations.

Minimalin Watch Face is a minimalistic Wear OS watch face featuring clean typography and Material Design aesthetics. The watch face displays time with customizable complications and supports ambient mode for always-on displays with reduced power consumption. Inspired by the original Pebble Minimalin watch face, this Wear OS implementation includes configurable color themes, center complications for additional information display, and optimized rendering for various screen sizes and densities across different smartwatch models.

Sometime in the first half of 2018 there was an explosion of “Dockless e-scooters” appearing all over the Bay Area. These devices are electric scooters that anyone can rent for a one-way trip and find/leave them (at the time) anywhere you want. As one could guess this led to lots of issues but they where convenient and I wanted one of my own so I did a little research onto how to acquire one for private use. ...

M365 Toolbox demonstrates a security vulnerability in the Xiaomi M365 electric scooter’s communication protocol. The Java application exploits weaknesses in the scooter’s Bluetooth Low Energy (BLE) authentication mechanism to bypass security controls and execute unauthorized commands. The proof-of-concept tool reveals how the scooter’s authentication can be circumvented through protocol manipulation, allowing remote control access without proper authorization. This research highlighted critical security flaws in IoT device communication protocols commonly found in consumer transportation devices.